81346640

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{12251}}^1$

素因数の和:12347

約数の個数: 40

約数和(自身を含む): 191425248

約数和(自身を除く): 110078608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 12251, 24502, 49004, 61255, 98008, 122510, 196016, 245020, 490040, 980080, 1016833, 2033666, 4067332, 5084165, 8134664, 10168330, 16269328, 20336660, 40673320, 81346640]

約数ペア:

[(1, 81346640), (2, 40673320), (4, 20336660), (5, 16269328), (8, 10168330), (10, 8134664), (16, 5084165), (20, 4067332), (40, 2033666), (80, 1016833), (83, 980080), (166, 490040), (332, 245020), (415, 196016), (664, 122510), (830, 98008), (1328, 61255), (1660, 49004), (3320, 24502), (6640, 12251)]